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  4. The reaction between p-methyl benzaldehyde and conc. NaOH is an example of

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Q. The reaction between p-methyl benzaldehyde and conc. NaOH is an example of

UPSEEUPSEE 2018

Solution:

Cannizzaro reaction

Aldehydes that do not contain an $\alpha$ -hydrogen atom, when treated with conc. NaOH solution undergo disproportionation, i.e. self reduction oxidation. As a result, one molecule of the aldehyde is reduced to corresponding alcohol and the other is oxidised to corresponding carboxylic acid.This is known as Cannizzaro reaction.

The reaction of p-methyl benzaldehyde and $NaOH$ is an example of Cannizzaro reaction..

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